Plug for use at an end of a tube



FIG. 1 is a perspective view of the plug for use at an end of a tube;

FIG. 2 is a front view thereof;

FIG. 3 is a plan view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is an enlarged sectional view taken at 6—6 of FIG. 2;

FIG. 7 is an enlarged sectional view taken at 7—7 of FIG. 2;

FIG. 8 is an enlarged sectional view taken at 8—8 of FIG. 3;

FIG. 9 is a reference view of the plug for use at an end of a tube together with a heat exchanger pipe for a steam generator; and,

FIG. 10 is a reference view of the plug for use at an end of a tube together with a heat exchanger pipe for a steam generator, a tube support plate, and a tube plate.

The broken line showing of parts of the drawings is included for the purpose of illustrating use and environment and forms no part of the claimed design. 

The ornamental design for a plug for use at an end of a tube, as shown and described. 